US-12622741-B2 - Conductive electrode for electrosurgical handpiece and manufacturing method therefor

Abstract

The present invention relates to a conductive electrode of a monopolar handpiece, used in an electrosurgical handpiece. Specifically, the purpose of the present invention is to provide a conductive electrode for an electrosurgical handpiece and a manufacturing method therefor, in which during surgery, tissue carbonization and smog production nearly do not occur, and tissues do not adhere to the electrode.

Inventors

• In-sang Choi

Assignees

• In-sang Choi
• Eun A. Choi
• Bo Hwan Choi

Dates

Publication Date

20260512

Application Date

20211220

Priority Date

20201231

Claims (5)

1. 1 . A method for manufacturing an electrosurgical handpiece conductive electrode, the method comprising: a blade molding step of molding a blade comprising aluminum in a plate shape such that a plug is provided on one side of the blade; an anodizing coating step of anodizing the blade so as to form an anodizing coating layer having a thickness of 30-80 μm on a surface of the blade; a primary edge portion processing step of forming an edge portion by removing the anodizing coating layer formed on a peripheral part of the blade; and a non-sticky coating step of forming a non-sticky coating layer on the surface of the blade, wherein the non-sticky coating step comprises: preparing a ceramic solution comprising a mixture of a ceramic, a dilutant, and a pigment; spraying the ceramic solution to the surface of the blade; and drying the ceramic solution in a temperature of 30-50° C.
2. 2 . The method of claim 1 , wherein the non-sticky coating layer comprising the ceramic is formed to have a thickness of 10-40 μm.
3. 3 . The method of claim 1 , further comprising a secondary edge portion processing step of removing the non-sticky coating layer formed on the edge portion of the blade through the non-sticky coating step.
4. 4 . The method of claim 2 , wherein the anodizing coating layer formed in the anodizing coating step has a thickness of 40 μm, and the non-sticky coating layer comprising the ceramic material, which is formed in the non-sticky coating step has a thickness of 30 μm.
5. 5 . The method of claim 1 , wherein, in the primary edge portion processing step, a part of the anodizing coating layer formed on the peripheral part of the blade is removed such that the edge portion is formed only on the part of the peripheral part of the blade.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is a U.S. National Stage Application of International Application No. PCT/KR2021/019366, filed on Dec. 20, 2021, which claims the benefit under 35 USC 119(a) and 365(b) of Korean Patent Application No. 10-2020-0188948, filed on Dec. 31, 2020 and Korean Patent Application No. 10-2021-0065249, filed on May 21, 2021, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. TECHNICAL FIELD The present disclosure relates to a monopolar handpiece conductive electrode used for an electrosurgical handpiece and, more particularly, an aspect of the present disclosure is to provide an electrosurgical handpiece conductive electrode and a method for manufacturing the same, wherein minimal tissue carbonization and smog occur during surgery, and no tissue adheres to the electrode. BACKGROUND ART Conventionally, iron-made surgical scalpels have been used to conduct tissue incision surgeries, and are still widely used today. However, as a result of highly developed modern engineering technologies, cutting-edge surgical tools that use energy such as electricity, laser, or ultrasonic waves have appeared. The principle of energy-based surgical instruments is as follows: energy is appropriately injected into the tissue of a human body such that the tissue is changed, thereby having a surgical effect. The most widely used energy-based surgery among them is electrosurgery, which refers to a surgical method in which high-frequency or radio-frequency electric energy is used to incise, excise, or cauterize a patient's tissue. Human nervous systems react very sensitively to low-frequency electricity of up to 1,000 Hz. Therefore, if exposed to domestic AC electricity, humans will get electric shocks. Electrosurgery using high-frequency electric energy uses high-frequency electricity ranging from 200 kHz to 5 MHz. Electric energy supplied through an electrode generates vibrations inside cells, and the temperature inside the cells increases, thereby heating the tissue. If the temperature inside the cells reaches about 60° C., cell death occurs. If heated to 60-90° C., the tissue is dried (dehydrated), and protein coagulation proceeds. If the temperature inside the cells reaches 100° C., cells undergo volume expansion and vaporization. The tissue is incised or cauterized in such processes. As such, electrosurgery uses high-frequency electric currents to incise and coagulate tissue. When an electrosurgical device is used to incise tissue by a high-frequency electric current, heat is generated, thereby causing a noticeable coagulation effect. Such electrosurgical incision inevitably generates an arc at a high temperature as the air insulating layer is destroyed by incomplete contact between the conductive electrode and tissue. The arc burns tissue (burn damage). There is also a problem in that the conductive electrode is contaminated by tissue carbonization. In addition, tissue carbonization by the arc results in smog, which is known to have adverse health influence on the surgeon and the patient. As illustrated in FIG. 1, the monopolar electrosurgery instrument 10 has a conductive electrode 12 fastened to the front of a handpiece 11 in FIG. 2, which is held by the surgeon, and has a ground pad 15 grounded on the patient. The handpiece 11 and the ground pad 15 are connected to a control unit 13, which generates high-frequency waves, by cables, respectively. There is a problem in that, when the conventional conductive electrode 12 is used to conduct electrosurgery, incomplete contact between the conductive electrode 12 and tissue generates a high-temperature arc, thereby resulting in tissue carbonization and smog, and the tissue adheres to the surface of the conductive electrode 12 and contaminates the same, making it necessary to frequently clean or replace the conductive electrode 12. DISCLOSURE OF INVENTION Technical Problem The present disclosure has been made to solve the above-mentioned problems, and it is an aspect of the present disclosure to provide an electrosurgical handpiece conductive electrode and a method for manufacturing the same, wherein the conductive electrode is configured to have a high level of insulation and non-stickiness such that tissue carbonization and smog do not occur during an electrosurgery, and no tissue adheres to the electrode surface, which is thus not contaminated. Solution to Problem A method for manufacturing an electrosurgical handpiece conductive electrode according to the present disclosure includes: a blade molding step S100 of molding a blade 101 in a plate type by using aluminum as a material such that a plug 102 is provided on one side of the blade 101; an anodizing coating step S200 of anodizing the blade 101 so as to form an anodizing coating layer 104 having a thickness of 30-80 μm on a surface thereof; a primary edge portion processing step S300 of forming an edge